Most people likely don't even get 10% into what it actually does. It has A LOT of features (not all of them are intuitive) and is capable of a huge range of tones / styles. You have to read the manual or watch tutorials. However, Vocodex is a pretty deep plugin. Own (or have used extensively) every single one available including those from Softube (UA), iZotope, Melda, Zynaptiq, Native Instruments, Sonivox, TAL, etc.